/* roulang page: index */
:root {
            --blue-950:#17314e;
            --blue-800:#245b89;
            --blue-700:#2f73aa;
            --blue-500:#5b9dcc;
            --blue-100:#e8f2f9;
            --blue-50:#f4f8fb;
            --coral:#e98d72;
            --mint:#8bc8b6;
            --yellow:#f3c86b;
            --ink:#213548;
            --muted:#6e8293;
            --line:#d9e5ed;
            --paper:#fbfcfd;
            --white:#ffffff;
            --radius:12px;
            --shadow:0 12px 28px rgba(31,76,111,.09);
            --shadow-hover:0 18px 34px rgba(31,76,111,.15);
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--ink);
            background:var(--paper);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
            font-size:16px;
            line-height:1.75;
            overflow-x:hidden;
        }
        a{color:var(--blue-800);text-decoration:none;transition:.2s ease}
        a:hover{color:var(--blue-950)}
        button,input,select{font:inherit}
        button{cursor:pointer}
        .side-panel{
            position:fixed;z-index:20;inset:0 auto 0 0;width:244px;
            padding:34px 22px 24px;background:#eef5f9;border-right:1px solid var(--line);
            display:flex;flex-direction:column;
        }
        .brand{display:flex;align-items:center;gap:11px;color:var(--blue-950);font-weight:800;font-size:19px;letter-spacing:-.03em;line-height:1.25}
        .brand-mark{width:28px;height:28px;position:relative;background:var(--blue-700);box-shadow:8px 8px 0 var(--coral)}
        .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--white)}
        .brand-mark:before{width:7px;height:7px;left:7px;top:7px}
        .brand-mark:after{width:7px;height:7px;right:6px;bottom:6px}
        .nav-label{margin:52px 10px 13px;color:var(--muted);font-size:12px;letter-spacing:.12em}
        .side-nav{list-style:none;margin:0;padding:0}
        .side-nav li{margin:5px 0}
        .side-nav a{display:flex;align-items:center;gap:12px;padding:12px 12px;border-radius:8px;color:#536b7d;font-size:15px}
        .side-nav a:hover{background:#e0edf5;color:var(--blue-950)}
        .side-nav a.active{position:relative;background:var(--blue-700);color:#fff;box-shadow:0 6px 14px rgba(47,115,170,.2)}
        .side-nav a.active:before{content:"";width:4px;height:22px;position:absolute;left:0;background:var(--coral)}
        .nav-no{font-size:11px;color:var(--blue-500);font-weight:700}
        .active .nav-no{color:#d9edf9}
        .side-note{margin-top:auto;padding:16px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
        .status-dot{display:inline-block;width:7px;height:7px;margin-right:7px;border-radius:50%;background:var(--mint)}
        .mobile-bar{display:none}
        .page{margin-left:244px}
        .container{max-width:1120px;margin:0 auto;padding:0 34px}
        section{padding:92px 0;border-bottom:1px solid var(--line)}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue-700);font-size:13px;font-weight:700;letter-spacing:.08em}
        .eyebrow:before{content:"";width:18px;height:4px;background:var(--coral);box-shadow:7px 0 0 var(--yellow)}
        h1,h2,h3{margin:0;color:var(--blue-950);line-height:1.25;letter-spacing:-.035em}
        h1{font-size:clamp(36px,5vw,56px);max-width:680px}
        h2{font-size:34px}
        h3{font-size:20px}
        .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
        .section-head p{max-width:520px;margin:10px 0 0;color:var(--muted)}
        .hero{padding:74px 0 84px;background:linear-gradient(90deg,#fbfcfd 0%,#f4f9fc 100%)}
        .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
        .hero-copy p{max-width:630px;margin:25px 0 28px;color:#5f7384;font-size:17px}
        .button-row{display:flex;gap:12px;flex-wrap:wrap}
        .button{margin:0;border:1px solid transparent;border-radius:7px;padding:13px 20px;font-size:15px;font-weight:700;transition:.2s ease}
        .button.primary{background:var(--blue-700);color:#fff}
        .button.primary:hover{background:var(--blue-950);transform:translateY(-2px)}
        .button.secondary{background:transparent;border-color:#a9c5d8;color:var(--blue-800)}
        .button.secondary:hover{background:var(--blue-100);transform:translateY(-2px)}
        .hero-points{display:flex;gap:22px;flex-wrap:wrap;margin-top:32px}
        .hero-point{font-size:13px;color:var(--muted)}
        .hero-point strong{display:block;color:var(--blue-800);font-size:22px;line-height:1.2}
        .bento{display:grid;grid-template-columns:1.15fr .85fr;grid-template-rows:1fr 1fr;gap:14px}
        .bento-card{position:relative;min-height:136px;padding:22px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
        .bento-card.large{grid-row:span 2;background:var(--blue-700);color:#fff;padding:28px}
        .bento-card.large h3{color:#fff;font-size:25px;margin:30px 0 11px}
        .bento-card.large p{color:#dcecf6;font-size:14px}
        .bento-card h3{font-size:17px;margin:18px 0 5px}
        .bento-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.6}
        .pixel-grid{height:70px;background-image:linear-gradient(rgba(255,255,255,.16) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.16) 1px,transparent 1px);background-size:14px 14px}
        .mini-tag,.tag{display:inline-block;padding:3px 8px;border-radius:4px;background:var(--blue-100);color:var(--blue-800);font-size:12px;line-height:1.5}
        .tag.coral{background:#fff0eb;color:#b96550}.tag.mint{background:#e8f6f1;color:#327866}
        .bento-card .corner{position:absolute;right:15px;top:15px;width:8px;height:8px;background:var(--coral)}
        .problem-track{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .problem{padding:28px 22px 26px;border-right:1px solid var(--line)}
        .problem:last-child{border-right:0}
        .problem-no{color:var(--coral);font-size:13px;font-weight:800}
        .problem h3{margin:13px 0 8px;font-size:18px}
        .problem p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
        .solution-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:start}
        .solution-intro{padding:25px;background:var(--blue-50);border-left:4px solid var(--blue-500)}
        .solution-intro p{margin:14px 0 0;color:var(--muted)}
        .steps{list-style:none;margin:0;padding:0}
        .step{display:grid;grid-template-columns:58px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
        .step:last-child{border-bottom:0}
        .step-index{color:var(--blue-700);font-weight:800;font-size:14px;padding-top:3px}
        .step h3{font-size:19px;margin-bottom:4px}
        .step p{margin:0;color:var(--muted);font-size:14px}
        .value-zone{background:#f2f7fa}
        .value-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:26px}
        .value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
        .value-number{font-size:42px;color:var(--blue-700);font-weight:800;line-height:1}
        .value-card p{color:var(--muted);margin:13px 0 0;font-size:14px}
        .value-list{margin:0;padding:0;list-style:none}
        .value-list li{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px dashed #cbdce7;color:#526c7e;font-size:14px}
        .value-list li:last-child{border:0}
        .bar{width:120px;height:7px;margin-top:9px;background:#e5eff4;border-radius:10px;overflow:hidden}
        .bar i{display:block;height:100%;background:var(--mint);border-radius:10px}
        .rank-list{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
        .rank-row{display:grid;grid-template-columns:58px 1fr 120px 100px;align-items:center;gap:18px;padding:17px 22px;border-bottom:1px solid var(--line)}
        .rank-row:last-child{border-bottom:0}
        .rank-num{font-size:23px;font-weight:800;color:var(--blue-500)}
        .rank-title{font-weight:700;color:var(--blue-950)}
        .rank-title small{display:block;color:var(--muted);font-size:12px;font-weight:400}
        .rank-meta{font-size:13px;color:var(--muted)}
        .trend{color:#398d78;font-size:13px}
        .news-layout{display:grid;grid-template-columns:1fr 300px;gap:24px}
        .news-list,.news-feature{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
        .news-item{display:grid;grid-template-columns:90px 1fr auto;gap:18px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line)}
        .news-item:last-child{border-bottom:0}
        .date-box{color:var(--blue-700);font-size:13px;font-weight:700}
        .news-item h3{font-size:17px;margin-bottom:3px}
        .news-item p{margin:0;color:var(--muted);font-size:13px}
        .news-feature{padding:26px;background:var(--blue-950);color:#fff}
        .news-feature h3{color:#fff;margin:18px 0 10px}
        .news-feature p{color:#c7dae7;font-size:14px}
        .faq-wrap{max-width:820px;margin:auto}
        .accordion{background:transparent;margin:0}
        .accordion-title{padding:20px 18px;color:var(--blue-950);font-weight:700;border:0;border-bottom:1px solid var(--line);font-size:16px}
        .accordion-title:hover,.accordion-title:focus{background:var(--blue-50);color:var(--blue-700)}
        .accordion-content{border:0;background:#f6fafc;color:var(--muted);font-size:14px;padding:18px 22px}
        .cta-section{padding:72px 0}
        .cta-box{position:relative;overflow:hidden;background:var(--blue-100);border:1px solid #c9deeb;border-radius:14px;padding:42px;display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-box:after{content:"";position:absolute;right:-24px;bottom:-30px;width:110px;height:110px;border:14px solid rgba(91,157,204,.15);transform:rotate(45deg)}
        .cta-box p{margin:10px 0 0;color:var(--muted)}
        .cta-box .button-row{position:relative;z-index:1}
        footer{padding:44px 0 30px;background:#eef5f9}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
        .footer-title{font-weight:800;color:var(--blue-950);margin-bottom:12px}
        footer p,footer a{font-size:13px;color:var(--muted)}
        .footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:5px 0}
        .footer-bottom{margin-top:32px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;color:#8296a5}
        :focus-visible{outline:3px solid rgba(233,141,114,.55);outline-offset:3px}
        @media(max-width:1024px){.side-panel{width:210px}.page{margin-left:210px}.container{padding:0 28px}.hero-grid{gap:30px}.problem-track{grid-template-columns:repeat(2,1fr)}.problem:nth-child(2){border-right:0}.problem:nth-child(-n+2){border-bottom:1px solid var(--line)}}
        @media(max-width:767px){
            .side-panel{display:none}.page{margin-left:0}.mobile-bar{height:64px;padding:0 18px;display:flex;align-items:center;justify-content:space-between;background:#eef5f9;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
            .mobile-toggle{border:1px solid #b8cfdd;background:#fff;border-radius:6px;color:var(--blue-800);padding:7px 11px}
            .mobile-menu{display:none;position:absolute;top:63px;left:0;right:0;padding:10px 18px 16px;background:#f7fbfd;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
            .mobile-menu.open{display:block}.mobile-menu a{display:block;padding:11px 4px;border-bottom:1px solid var(--line);font-size:14px}
            .container{padding:0 20px}section{padding:66px 0}.hero{padding:54px 0 64px}.hero-grid,.solution-grid,.value-grid,.news-layout{grid-template-columns:1fr}.bento{margin-top:10px}.section-head{display:block;margin-bottom:28px}h2{font-size:29px}.problem-track{grid-template-columns:1fr}.problem{border-right:0!important;border-bottom:1px solid var(--line)!important}.problem:last-child{border-bottom:0!important}.rank-row{grid-template-columns:42px 1fr auto;gap:10px}.rank-meta{display:none}.news-item{grid-template-columns:70px 1fr}.news-item a{grid-column:2}.cta-box{display:block;padding:30px 24px}.cta-box .button-row{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}
        }
        @media(max-width:520px){h1{font-size:35px}.hero-copy p{font-size:16px}.button-row .button{width:100%;text-align:center}.bento{display:block}.bento-card{margin-bottom:12px}.hero-points{gap:14px}.footer-grid{grid-template-columns:1fr}}

/* roulang page: category1 */
:root{
      --blue-950:#17314e;
      --blue-800:#245b89;
      --blue-700:#2f73aa;
      --blue-500:#5b9dcc;
      --blue-100:#e8f2f9;
      --blue-50:#f4f8fb;
      --coral:#e98d72;
      --mint:#8bc8b6;
      --yellow:#f3c86b;
      --ink:#213548;
      --muted:#6e8293;
      --line:#d9e5ed;
      --paper:#fbfcfd;
      --white:#fff;
      --radius:12px;
      --shadow:0 12px 28px rgba(31,76,111,.09);
      --shadow-hover:0 18px 34px rgba(31,76,111,.15);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:var(--paper);color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;line-height:1.75;overflow-x:hidden;
    }
    a{color:var(--blue-800);text-decoration:none;transition:.2s ease}
    a:hover{color:var(--blue-950)}
    button,input,select{font:inherit}
    button{cursor:pointer}
    .container{max-width:1120px;margin:0 auto;padding:0 34px}
    .site-shell{min-height:100vh}
    .desktop-nav{
      position:fixed;left:0;top:0;bottom:0;width:244px;padding:34px 24px;
      background:#f1f7fb;border-right:1px solid var(--line);z-index:20;
      display:flex;flex-direction:column;
    }
    .brand{display:flex;align-items:center;gap:11px;color:var(--blue-950);font-weight:800;font-size:19px;letter-spacing:-.03em;line-height:1.25}
    .brand-mark{width:28px;height:28px;position:relative;background:var(--blue-700);box-shadow:8px 8px 0 var(--coral);flex:none}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--white)}
    .brand-mark:before{width:7px;height:7px;left:7px;top:7px}
    .brand-mark:after{width:7px;height:7px;right:6px;bottom:6px}
    .nav-label{margin:52px 10px 13px;color:var(--muted);font-size:12px;letter-spacing:.12em}
    .side-nav{list-style:none;margin:0;padding:0}
    .side-nav li{margin:5px 0}
    .side-nav a{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;color:#536b7d;font-size:15px}
    .side-nav a:hover{background:#e0edf5;color:var(--blue-950)}
    .side-nav a.active{position:relative;background:var(--blue-700);color:#fff;box-shadow:0 6px 14px rgba(47,115,170,.2)}
    .side-nav a.active:before{content:"";width:4px;height:22px;position:absolute;left:0;background:var(--coral)}
    .nav-no{font-size:11px;color:var(--blue-500);font-weight:700}
    .active .nav-no{color:#d9edf9}
    .side-note{margin-top:auto;padding:16px 12px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}
    .status-dot{display:inline-block;width:7px;height:7px;background:var(--mint);margin-right:7px}
    .main-area{margin-left:244px}
    .mobile-bar{display:none}
    .hero{
      padding:66px 0 58px;
      background:linear-gradient(90deg,#fbfcfd 0%,#f1f8fc 100%);
      border-bottom:1px solid var(--line)
    }
    .breadcrumb{font-size:13px;color:var(--muted);margin-bottom:28px}
    .breadcrumb a{color:var(--blue-700)}
    .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue-700);font-size:13px;font-weight:700;letter-spacing:.08em}
    .eyebrow:before{content:"";width:18px;height:4px;background:var(--coral);box-shadow:7px 0 0 var(--yellow)}
    h1,h2,h3{color:var(--blue-950);line-height:1.3;margin-top:0}
    h1{font-size:clamp(34px,4vw,50px);letter-spacing:-.045em;margin:18px 0}
    h2{font-size:30px;margin-bottom:12px}
    h3{font-size:18px;margin-bottom:8px}
    .hero-copy p{max-width:620px;color:#607688;font-size:17px;margin:0 0 26px}
    .button-row{display:flex;gap:12px;flex-wrap:wrap}
    .button{display:inline-block;margin:0;border:1px solid transparent;border-radius:7px;padding:12px 20px;font-size:15px;font-weight:700;transition:.2s ease}
    .button.primary{background:var(--blue-700);color:#fff}
    .button.primary:hover{background:var(--blue-950);transform:translateY(-2px)}
    .button.secondary{background:transparent;border-color:#a9c5d8;color:var(--blue-800)}
    .button.secondary:hover{background:var(--blue-100);transform:translateY(-2px)}
    .profile-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;position:relative}
    .profile-top{display:flex;align-items:center;gap:16px;padding-bottom:22px;border-bottom:1px solid var(--line)}
    .avatar{width:58px;height:58px;background:var(--blue-100);border:1px solid #bdd6e5;position:relative}
    .avatar:before,.avatar:after{content:"";position:absolute;background:var(--blue-700)}
    .avatar:before{width:22px;height:22px;left:17px;top:12px}
    .avatar:after{width:34px;height:9px;left:12px;bottom:10px}
    .profile-name{font-weight:800;color:var(--blue-950);font-size:18px}
    .profile-name small{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:3px}
    .follow{margin-left:auto;padding:8px 12px;border:1px solid #b9d2e1;border-radius:6px;color:var(--blue-800);font-size:13px}
    .follow:hover{background:var(--blue-100)}
    .profile-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding-top:22px}
    .profile-stats strong{display:block;color:var(--blue-800);font-size:23px;line-height:1.2}
    .profile-stats span{font-size:12px;color:var(--muted)}
    .panel-index{margin-top:24px;padding:14px;background:var(--blue-50);border-left:3px solid var(--coral);font-size:13px;color:var(--muted)}
    section{padding:78px 0;border-bottom:1px solid var(--line)}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:30px}
    .section-head p{max-width:510px;margin:8px 0 0;color:var(--muted)}
    .filter-bar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:var(--white);border:1px solid var(--line);padding:16px;border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:28px}
    .filter-bar label{font-size:13px;color:var(--muted)}
    .filter-bar select,.filter-bar input{height:42px;margin:0;border:1px solid #c8dbe7;border-radius:6px;background:#fff;color:var(--ink);padding:0 12px;min-width:150px}
    .filter-bar input{min-width:220px}
    .filter-bar select:focus,.filter-bar input:focus{outline:3px solid rgba(91,157,204,.2);border-color:var(--blue-500)}
    .index-layout{display:grid;grid-template-columns:250px 1fr;gap:24px;align-items:start}
    .filter-panel{background:var(--blue-950);color:#dcecf6;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
    .filter-panel h3{color:#fff;font-size:18px}
    .filter-panel p{font-size:13px;color:#b8d0df;margin-bottom:22px}
    .filter-list{list-style:none;margin:0;padding:0}
    .filter-list li{border-top:1px solid rgba(255,255,255,.14)}
    .filter-list a{display:flex;justify-content:space-between;padding:12px 0;color:#dcecf6;font-size:14px}
    .filter-list a:hover{color:#fff;padding-left:4px}
    .filter-count{color:var(--coral);font-size:12px}
    .content-stream{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:92px 1fr auto;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);transition:.2s ease}
    .content-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#b9d4e4}
    .index-art{height:72px;background:var(--blue-100);position:relative;overflow:hidden}
    .index-art:before{content:"";position:absolute;inset:14px;background-image:linear-gradient(#9cc3d9 1px,transparent 1px),linear-gradient(90deg,#9cc3d9 1px,transparent 1px);background-size:12px 12px}
    .index-art:after{content:"";position:absolute;width:12px;height:12px;right:15px;bottom:14px;background:var(--coral)}
    .item-title{font-weight:800;color:var(--blue-950);font-size:17px;margin-bottom:4px}
    .item-summary{font-size:13px;color:var(--muted);margin:0}
    .item-meta{text-align:right;white-space:nowrap;color:var(--muted);font-size:12px}
    .tag{display:inline-block;padding:3px 8px;border-radius:4px;background:var(--blue-100);color:var(--blue-800);font-size:12px;line-height:1.5;margin-right:5px}
    .tag.coral{background:#fff0eb;color:#b96550}
    .tag.mint{background:#e8f6f1;color:#327866}
    .value-strip{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
    .value-card h3{margin-bottom:14px}
    .value-card p{font-size:14px;color:var(--muted);margin:0}
    .check-list{list-style:none;margin:0;padding:0}
    .check-list li{padding:12px 0 12px 25px;border-bottom:1px dashed #cbdce7;font-size:14px;position:relative}
    .check-list li:last-child{border:0}
    .check-list li:before{content:"";position:absolute;left:0;top:19px;width:9px;height:9px;background:var(--mint)}
    .faq-wrap{max-width:820px}
    .accordion{background:transparent;margin:0}
    .accordion-item{border:1px solid var(--line);border-bottom:0;background:#fff}
    .accordion-item:last-child{border-bottom:1px solid var(--line)}
    .accordion-title{padding:18px 22px;color:var(--blue-950);font-weight:700;font-size:15px}
    .accordion-title:hover{background:var(--blue-50)}
    .accordion-content{padding:0 22px 18px;color:var(--muted);font-size:14px;border:0}
    .cta{padding:72px 0;background:var(--blue-100)}
    .cta-card{display:flex;justify-content:space-between;align-items:center;gap:30px;background:#fff;border:1px solid #c8dce9;border-radius:var(--radius);padding:34px 38px;box-shadow:var(--shadow)}
    .cta-card h2{margin:0 0 8px;font-size:27px}
    .cta-card p{margin:0;color:var(--muted);font-size:14px}
    footer{background:#edf5f9;padding:48px 0 26px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:50px}
    .footer-title{font-size:18px;font-weight:800;color:var(--blue-950);margin-bottom:10px}
    footer p{color:var(--muted);font-size:13px;margin:0}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:5px 0}
    .footer-links a{font-size:13px;color:#587286}
    .footer-links a:hover{color:var(--blue-700)}
    .footer-bottom{border-top:1px solid var(--line);margin-top:36px;padding-top:18px;color:#7890a0;font-size:12px}
    @media(max-width:1024px){
      .desktop-nav{width:210px;padding:28px 18px}.main-area{margin-left:210px}
      .container{padding:0 26px}.hero-grid{gap:30px}
    }
    @media(max-width:767px){
      .desktop-nav{display:none}.main-area{margin-left:0}
      .mobile-bar{height:66px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:#f1f7fb;border-bottom:1px solid var(--line);position:relative;z-index:10}
      .mobile-toggle{border:1px solid #b9d2e1;background:#fff;color:var(--blue-800);border-radius:6px;padding:7px 11px;font-size:13px}
      .mobile-menu{display:none;position:absolute;top:65px;left:0;right:0;padding:12px 20px;background:#f1f7fb;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
      .mobile-menu.open{display:block}.mobile-menu a{display:block;padding:11px 4px;color:var(--blue-800);border-bottom:1px solid var(--line)}
      .container{padding:0 20px}.hero{padding:42px 0 48px}.hero-grid{grid-template-columns:1fr;gap:30px}
      h1{font-size:36px}.section-head{display:block;margin-bottom:24px}section{padding:58px 0}
      .index-layout,.value-strip{grid-template-columns:1fr}.filter-panel{padding:20px}
      .content-item{grid-template-columns:64px 1fr;gap:14px;padding:16px}.index-art{height:60px}.item-meta{grid-column:2;text-align:left}
      .filter-bar{align-items:stretch}.filter-bar input,.filter-bar select{width:100%;min-width:0}
      .cta-card{display:block;padding:26px 22px}.cta-card .button{margin-top:22px;width:100%;text-align:center}
      .footer-grid{grid-template-columns:1fr;gap:26px}.profile-stats{gap:7px}
    }
    @media(max-width:520px){
      .brand{font-size:17px}.hero-copy p{font-size:16px}.profile-panel{padding:20px}.follow{font-size:12px;padding:7px 8px}
      .button-row .button{width:100%;text-align:center}.item-title{font-size:15px}
    }

/* roulang page: category2 */
:root{
 --blue-950:#17314e;
 --blue-800:#245b89;
 --blue-700:#2f73aa;
 --blue-500:#5b9dcc;
 --blue-100:#e8f2f9;
 --blue-50:#f4f8fb;
 --coral:#e98d72;
 --mint:#8bc8b6;
 --yellow:#f3c86b;
 --ink:#213548;
 --muted:#6e8293;
 --line:#d9e5ed;
 --paper:#fbfcfd;
 --white:#fff;
 --radius:12px;
 --shadow:0 12px 28px rgba(31,76,111,.09);
 --shadow-hover:0 18px 34px rgba(31,76,111,.15);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 color:var(--ink);
 background:var(--paper);
 font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
 font-size:16px;
 line-height:1.75;
 overflow-x:hidden;
}
h1,h2,h3,h4,p{margin-top:0}
h1,h2,h3,h4{color:var(--blue-950);line-height:1.3}
h1{font-size:clamp(34px,4vw,50px);letter-spacing:-.045em;margin:16px 0}
h2{font-size:clamp(27px,3vw,34px);letter-spacing:-.03em;margin:8px 0 0}
h3{font-size:20px;margin-bottom:8px}
p{color:var(--muted)}
a{color:var(--blue-800);text-decoration:none;transition:.2s ease}
a:hover{color:var(--blue-950)}
button,input,select{font:inherit}
button{cursor:pointer}
.container{max-width:1120px;margin:0 auto;padding:0 34px}
.page-shell{min-height:100vh}
.side-panel{
 position:fixed;z-index:10;left:0;top:0;bottom:0;width:246px;
 padding:34px 22px 24px;background:#f2f7fa;border-right:1px solid var(--line);
 display:flex;flex-direction:column;
}
.brand{display:flex;align-items:center;gap:11px;color:var(--blue-950);font-weight:800;font-size:19px;letter-spacing:-.03em;line-height:1.25}
.brand:hover{color:var(--blue-700)}
.brand-mark{width:28px;height:28px;position:relative;background:var(--blue-700);box-shadow:8px 8px 0 var(--coral);flex:0 0 auto}
.brand-mark:before,.brand-mark:after{content:"";position:absolute;background:var(--white)}
.brand-mark:before{width:7px;height:7px;left:7px;top:7px}
.brand-mark:after{width:7px;height:7px;right:6px;bottom:6px}
.nav-label{margin:52px 10px 13px;color:var(--muted);font-size:12px;letter-spacing:.12em}
.side-nav{list-style:none;margin:0;padding:0}
.side-nav li{margin:5px 0}
.side-nav a{display:flex;align-items:center;gap:12px;padding:12px;border-radius:8px;color:#536b7d;font-size:15px}
.side-nav a:hover{background:#e0edf5;color:var(--blue-950)}
.side-nav a.active{position:relative;background:var(--blue-700);color:#fff;box-shadow:0 6px 14px rgba(47,115,170,.2)}
.side-nav a.active:before{content:"";width:4px;height:22px;position:absolute;left:0;background:var(--coral)}
.nav-no{font-size:11px;color:var(--blue-500);font-weight:700}
.active .nav-no{color:#d9edf9}
.side-note{margin-top:auto;padding:17px 13px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.side-note strong{display:block;color:var(--blue-800);margin-bottom:4px}
.main-content{margin-left:246px}
.mobile-bar{display:none}
section{padding:88px 0;border-bottom:1px solid var(--line)}
.hero{padding:58px 0 75px;background:linear-gradient(90deg,#fbfcfd 0%,#f2f8fc 100%)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:30px}
.breadcrumb a{color:var(--blue-700)}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:58px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--blue-700);font-size:13px;font-weight:700;letter-spacing:.08em}
.eyebrow:before{content:"";width:18px;height:4px;background:var(--coral);box-shadow:7px 0 0 var(--yellow)}
.hero-copy p{max-width:625px;margin:22px 0 27px;font-size:17px}
.button-row{display:flex;gap:12px;flex-wrap:wrap}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;margin:0;border:1px solid transparent;border-radius:7px;padding:11px 19px;font-size:15px;font-weight:700;transition:.2s ease}
.button:focus,input:focus,select:focus,button:focus{outline:3px solid rgba(91,157,204,.28);outline-offset:2px}
.button.primary{background:var(--blue-700);color:#fff}
.button.primary:hover{background:var(--blue-950);color:#fff;transform:translateY(-2px)}
.button.secondary{background:transparent;border-color:#a9c5d8;color:var(--blue-800)}
.button.secondary:hover{background:var(--blue-100);transform:translateY(-2px)}
.hero-panel{position:relative;padding:25px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-top{display:flex;justify-content:space-between;align-items:center;padding-bottom:19px;border-bottom:1px solid var(--line)}
.panel-top strong{color:var(--blue-950);font-size:17px}
.status{display:inline-flex;align-items:center;gap:6px;color:#327866;font-size:12px}
.status:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mint)}
.index-stack{padding:22px 0 4px}
.index-row{display:grid;grid-template-columns:42px 1fr auto;gap:15px;align-items:center;padding:15px 0;border-bottom:1px dashed #cbdce7}
.index-row:last-child{border-bottom:0}
.index-no{color:var(--coral);font-weight:800;font-size:13px}
.index-row strong{display:block;color:var(--blue-950);font-size:15px}
.index-row small{display:block;color:var(--muted);font-size:12px;margin-top:2px}
.panel-foot{padding-top:16px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}
.section-head p{max-width:540px;margin:10px 0 0}
.split-layout{display:grid;grid-template-columns:.76fr 1.24fr;gap:46px;align-items:start}
.intro-note{padding:23px;border-left:4px solid var(--coral);background:#fff7f3;border-radius:0 10px 10px 0}
.intro-note p{margin:0;font-size:14px}
.problem-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.problem-item{padding:21px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)}
.problem-item:hover,.feature-card:hover,.timeline-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.problem-item,.feature-card,.timeline-item{transition:.2s ease}
.problem-index{display:block;color:var(--coral);font-size:12px;font-weight:800;margin-bottom:12px}
.problem-item h3{font-size:17px;margin-bottom:6px}
.problem-item p{font-size:13px;margin:0}
.feature-area{display:grid;grid-template-columns:1.12fr .88fr;gap:22px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:27px}
.feature-card.featured{background:var(--blue-950);color:#fff;min-height:290px}
.featured h3{color:#fff;font-size:25px;margin:25px 0 11px}
.featured p{color:#c7dae7;font-size:14px}
.featured .tag{background:#2d5675;color:#e2f0f8}
.card-label{display:flex;justify-content:space-between;align-items:center}
.card-label small{color:var(--muted);font-size:12px}
.featured .card-label small{color:#b9d1df}
.pixel-grid{height:62px;margin:-27px -27px 0;background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);background-size:14px 14px}
.tag{display:inline-block;padding:3px 8px;border-radius:4px;background:var(--blue-100);color:var(--blue-800);font-size:12px;line-height:1.5}
.tag.coral{background:#fff0eb;color:#b96550}
.tag.mint{background:#e8f6f1;color:#327866}
.tag.yellow{background:#fff7dc;color:#967329}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.compact-list{display:flex;flex-direction:column;gap:12px}
.compact-item{padding:16px 17px;border:1px solid var(--line);border-radius:9px;background:var(--blue-50)}
.compact-item strong{display:block;color:var(--blue-950);font-size:15px}
.compact-item span{font-size:12px;color:var(--muted)}
.timeline{position:relative;margin:12px 0 0;padding-left:28px}
.timeline:before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:1px;background:#b9d2e1}
.timeline-item{position:relative;display:grid;grid-template-columns:120px 1fr auto;gap:25px;align-items:center;padding:19px 22px;margin-bottom:13px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)}
.timeline-item:before{content:"";position:absolute;left:-26px;width:10px;height:10px;background:var(--coral);border:3px solid var(--paper);box-shadow:0 0 0 1px var(--coral)}
.timeline-date{font-size:13px;color:var(--blue-700);font-weight:700}
.timeline-item strong{display:block;color:var(--blue-950);font-size:16px}
.timeline-item p{margin:3px 0 0;font-size:13px}
.value-band{display:grid;grid-template-columns:.8fr 1.2fr;gap:25px;align-items:stretch}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:27px;box-shadow:var(--shadow)}
.value-card.blue{background:var(--blue-100);border-color:#c8deeb}
.value-card h3{font-size:24px;margin-bottom:10px}
.value-card p{font-size:14px;margin:0}
.value-list{list-style:none;padding:0;margin:0}
.value-list li{display:flex;justify-content:space-between;gap:20px;padding:14px 0;border-bottom:1px dashed #cbdce7;font-size:14px;color:#536b7d}
.value-list li:last-child{border-bottom:0}
.value-list b{color:var(--blue-800);font-weight:700}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.quote-card:before{content:"“";display:block;color:var(--coral);font-size:34px;font-weight:800;line-height:1}
.quote-card p{font-size:14px;color:var(--ink);min-height:68px;margin:5px 0 18px}
.quote-meta{padding-top:13px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}
.faq-wrap{max-width:820px;margin:0 auto}
.accordion{background:transparent}
.accordion-title{border:1px solid var(--line);background:#fff;color:var(--blue-950);font-weight:700;font-size:16px;padding:18px 20px}
.accordion-title:hover,.accordion-title:focus{background:var(--blue-50);color:var(--blue-800)}
.accordion-content{border:1px solid var(--line);border-top:0;background:#fff;color:var(--muted);font-size:14px;padding:18px 20px}
.accordion-item{margin-bottom:10px}
.cta-section{padding:72px 0}
.cta-box{display:grid;grid-template-columns:1fr .88fr;gap:36px;align-items:center;background:var(--blue-100);border:1px solid #c9dfec;border-radius:14px;padding:39px 42px;position:relative;overflow:hidden}
.cta-box:after{content:"";position:absolute;right:-15px;top:-25px;width:110px;height:110px;border:12px solid rgba(47,115,170,.12);transform:rotate(45deg)}
.cta-box h2{margin-bottom:10px}
.cta-box p{font-size:14px;max-width:560px}
.cta-form{background:#fff;border:1px solid var(--line);padding:20px;border-radius:10px;box-shadow:var(--shadow)}
.cta-form label{display:block;color:var(--blue-950);font-size:13px;font-weight:700;margin-bottom:6px}
.cta-form select{width:100%;height:44px;border:1px solid #bdd1df;border-radius:6px;margin-bottom:12px;color:var(--ink);background:#fff}
.cta-form .button{width:100%}
.form-hint{font-size:12px;color:var(--muted);margin:10px 0 0;text-align:center}
footer{padding:48px 0 27px;background:#eef5f8}
.footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:42px}
.footer-title{color:var(--blue-950);font-weight:800;font-size:17px;margin-bottom:11px}
.footer-grid p{font-size:13px;margin:0;max-width:310px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:5px 0}
.footer-links a{font-size:13px;color:#5b7384}
.footer-links a:hover{color:var(--blue-700);padding-left:3px}
.footer-bottom{border-top:1px solid var(--line);margin-top:34px;padding-top:18px;color:var(--muted);font-size:12px}
@media(max-width:1024px){
 .side-panel{width:210px;padding-left:17px;padding-right:17px}
 .main-content{margin-left:210px}
 .container{padding:0 27px}
 .hero-grid{gap:32px}
}
@media(max-width:767px){
 .side-panel{display:none}
 .main-content{margin-left:0}
 .mobile-bar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;background:#f2f7fa;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
 .mobile-toggle{border:1px solid #b9d0df;background:#fff;color:var(--blue-800);border-radius:6px;padding:7px 11px;font-size:13px}
 .mobile-menu{display:none;position:absolute;top:64px;left:0;right:0;padding:13px 20px 17px;background:#f2f7fa;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
 .mobile-menu.is-open{display:block}
 .mobile-menu a{display:block;padding:10px 8px;border-bottom:1px solid var(--line);font-size:14px}
 .mobile-menu a:last-child{border-bottom:0}
 .container{padding:0 20px}
 section{padding:65px 0}
 .hero{padding:38px 0 58px}
 .hero-grid,.split-layout,.feature-area,.value-band,.cta-box{grid-template-columns:1fr}
 h1{font-size:35px}
 .hero-copy p{font-size:16px}
 .section-head{display:block;margin-bottom:26px}
 .problem-list,.quote-grid{grid-template-columns:1fr}
 .timeline{padding-left:19px}
 .timeline-item{grid-template-columns:1fr;gap:5px;padding:17px}
 .timeline-item:before{left:-18px}
 .cta-box{padding:27px 22px}
 .footer-grid{grid-template-columns:1fr;gap:25px}
}
@media(max-width:520px){
 .brand{font-size:17px}
 .hero-panel{padding:18px}
 .pixel-grid{margin:-18px -18px 0}
 .button-row .button{width:100%}
 .index-row{grid-template-columns:32px 1fr}
 .index-row .tag{display:none}
}